CN101097296A - Optical system for a projector, and corresponding projector - Google Patents
Optical system for a projector, and corresponding projector Download PDFInfo
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- CN101097296A CN101097296A CNA2007101273788A CN200710127378A CN101097296A CN 101097296 A CN101097296 A CN 101097296A CN A2007101273788 A CNA2007101273788 A CN A2007101273788A CN 200710127378 A CN200710127378 A CN 200710127378A CN 101097296 A CN101097296 A CN 101097296A
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- projector
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
- G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
- G02B27/1026—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with reflective spatial light modulators
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
- G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
- G02B27/1046—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with transmissive spatial light modulators
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/18—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
- H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
- H04N9/3114—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources by using a sequential colour filter producing one colour at a time
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
- G02B26/008—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light in the form of devices for effecting sequential colour changes, e.g. colour wheels
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Projection Apparatus (AREA)
- Liquid Crystal (AREA)
Abstract
The invention relates to an optical system (3) for a projector, comprising: - at least a first polarizing beam splitter (321) for splitting a source illumination beam into a first illumination beam linearly polarized along a first direction (326) and a second illumination beam polarized perpendicular to the first direction (327); - at least one colour wheel (307) intersecting the polarized illumination beams in two different regions and producing a first colour beam linearly polarized along the first direction and a perpendicularly polarized second colour beam; and - two imagers (309) illuminated by the first and second polarized colour beams respectively.
Description
Technical field
The present invention relates to the field of image projection.
More accurately, the present invention relates in a kind of image projector of front projection type or the imaging illuminator in the rear projector.
Background technology
According to prior art, as shown in Figure 1, use the illuminator 10 of illumination imager 11.
Routinely, illuminator 10 comprises:
The system of a plurality of relay lenss 104 to 106.
The outlet of conduit 102 is imaged onto imager 11 via relay lens system, and the minimal amount of the lens of this relay lens system is 2, but is generally three or four lens, and illumination is the heart far away preferably in addition.
If imager 11 is DMD type (from digital micro-mirror devices of Texas Instruments ), TIR prism 12 is placed between illuminator 10 and the imager 11 so that separate illumination and imaging beam so.If imager 11 is transmission LCD (LCD) types, TIR prism 12 is dispensable so, if or imager 11 are LCOS (silicon carrier fluid crystalline substance) types, TIR prism 12 usefulness dichroic PBS (polarization beam apparatus) substitute so.This system has the limited shortcoming of brightness.
For bigger brightness is provided, projector uses three imagers, and each is relevant with a kind of color.Yet this system is relatively costly.
Summary of the invention
The objective of the invention is to reduce these shortcomings of prior art.
More specifically, the purpose of this invention is to provide a kind of more powerful imaging flux, but still keep relatively cheap.
For this reason, the invention provides a kind of optical system of projector, comprising:
At least one produces the light source of source lighting light beam;
At least one first polarization beam apparatus is used for the source lighting beam separation for along first illuminating bundle of first direction linear polarization with perpendicular to second illuminating bundle of first direction polarization;
At least one colour wheel intersects first and second polarized illumination beams and produces along first column of colour of first direction linear polarization with perpendicular to second column of colour of first direction polarization in two different zones;
First imager is by along the illumination of first column of colour of first direction linear polarization and produce first imaging beam; With
Second imager is by perpendicular to the illumination of second column of colour of first direction polarization and produce second imaging beam.
Thereby, two kinds of polarizations of use incident beam, thereby the component number in the minimum optical illumination/imaging system.
Advantageously, system comprises at least one second polarization beam apparatus, and it is suitable for first imaging beam and second imaging beam are made up so that form the 3rd imaging beam.
According to favourable feature, two separate areas are relevant with the color part (colour segments) of different colours in each moment.
According to a concrete feature, two separate areas are at the color part correlation of each moment and complementary color.
According to another feature, under the situation of one of two zones and the color part correlation of green, another zone is relevant with red color part (colour segment), and under the situation of one of described two zones and yellow color part correlation, another zone and blue color part correlation.
According to a plurality of embodiment, first and second imagers are LCOS or transmission LCD type.
According to a plurality of features, first polarization beam apparatus is grating polarization type or dichroic type.
The invention still further relates to a kind of projector that comprises according to aforesaid optical system of the present invention.
Description of drawings
After the description of having read below with reference to appended accompanying drawing, the present invention will more be expressly understood, and other concrete aspect and advantage will become apparent, in the accompanying drawings:
Fig. 1 has illustrated known illuminator itself;
Fig. 2 is the synoptic diagram of the height signal of rear projector according to an embodiment of the invention;
Fig. 3 shows the imaging system of using in the rear projector of Fig. 2; With
Fig. 4 has illustrated according to the present invention the imaging system of alternative embodiment.
Embodiment
Fig. 2 is the synoptic diagram according to the height signal of the rear projector 2 of first embodiment of the invention.
Two folding mirrors 22 and 23, its folded light beam 25 also might reduce the degree of depth P of projector 2.
Fig. 3 describes the imaging system 20 with LCOS type imager (being also referred to as micro-display) in detail, and this system comprises:
Lens or lens combination 320 are used to increase the focal length of light beam 301;
Polarization beam apparatus 321 (for example as directed grating polarizer (for example being Moxtek type)), its with light beam 301 be separated into horizontal direction first light beam 326 (promptly in Fig. 3 plane along the linear polarization of first direction (perpendicular to the direction of propagation of light beam, first direction illustrates with the arrow symbol in Fig. 3)), it is by beam splitter 321, with second light beam 327 of vertical polarization (promptly perpendicular to the linear polarization of first direction, the direction of this polarization illustrates by the expropriation of land of the point image in the circle), it is by beam splitter 321 reflections, and this beam splitter tilts about the axle of light beam 301;
First rectangular conduit 302 is placed on after the colour wheel 307 and approaching with it, and described conduit is used for the round section of light beam 326 is converted to the square-section and makes the light beam space even;
Lens or lens combination 322 are used for light beam 326 is focused on the inlet of the conduit 302 of first focus (or point) 3070;
Second rectangular conduit 312 is placed on after the colour wheel 307 and is used for the round section of light beam 327 is converted to the square-section and makes the light beam space even;
Be placed on the lens (or lens combination) 323 and 325 of catoptron 324 either sides, it is along the direction folded light beam 327 of the axle that is parallel to light beam 326, and lens 323 and 325 might focus on light beam 327 on the inlet of the conduit 312 in second point (or point) 3071 that separates with first focus 3070;
First system of a plurality of relay lenss 304 to 306, its outlet with conduit 302 is imaged onto on first imager 309;
With tilt 45 ° polarization beam apparatus 308 of the axle of light beam 326, light beam 326 is by this beam splitter, and beam splitter 308 passes through horizontal polarization and reflects vertical polarization;
The one LCOS imager 309, it reflexes to beam splitter 308 by 326 illuminations of horizontal polarization illuminating bundle and with vertical polarization first imaging beam 340;
The system of a plurality of relay lenss 314 to 316, its outlet with conduit 312 is imaged onto second imager 319;
With 45 ° of the axle inclinations of light beam 327 and the polarization beam apparatus 318 of folded light beam 327, beam splitter 318 passes through horizontal polarization and reflects vertical polarization; With
The 2nd LCOS imager 319, it reflexes to beam splitter 318 by 327 illuminations of vertical polarization illuminating bundle and with horizontal polarization second imaging beam 341.
Preferably, the light path identical (in other words, beam splitter 318 is identical with the separating distance d of each imager 309 and 319) of the beam propagation between the inlet of the inlet of each conduit 302 and 312 and object lens 21.
Advantageously, the optical module that comprises source 300 and lens 320 and 326 allows light beam 326 to be focused a little 3070 in the porch of conduit 302 near colour wheel 307.Thereby the position of lamp in the source 300, the shape of the shape of reverberator (for example para-curve or ellipse, lamp is placed on the focus place) and lens 320 and 326 and position are adjusted so that focus of the light beam into a little 3070.
Advantageously, the optical module that comprises source 300, beam splitter 321, catoptron 324 and lens 320,323 and 325 allows light beam 327 to be focused a little 3071 in the porch of conduit 312 near colour wheel 307.Thereby, the position of lamp in the source 300, the shape of reverberator, the shape and the position of the position of beam splitter 321 and catoptron 324 and orientation and lens 320,323 and 325 are adjusted, so that focus of the light beam into a little 3071.
Because the polarization of light beam 340 is vertical (polarization at horizontal polarization light beam 326 changes the back), it is by beam splitter 308 reflections.
Because the polarization of light beam 341 is level (polarization at vertical polarization light beam 327 changes the back), its transmission is by beam splitter 318, and by beam splitter 308, it also is placed in the light path of light beam 341 then.
Two light beams 340 and 341 make up then to form single imaging beam 34.
Color part that colour wheel 307 comprises is a plurality of (for example 3,4,5 or 6).Preferably, focus 3070 and 3071 enough away from, easy with the mechanical positioning that allows optical element 321 to 325,302,312,304 to 306 and 314 to 3 16.Advantageously, two focuses are like this: they allow light beam 326 and 327 to complete a business transaction colour wheel in belonging to two zones of the part of different colours (segments).For example the turning axle 3072 with respect to wheel 307 is relative in two zones.According to distortion, the radius of edge, two zones wheel 307 is placed on the same distance place from axle 3072, makes to have 120 ° angle between them.Thereby light beam 340 has different colors with 341 in given moment.In this mode, " rainbow effect " or " color separated " can suppress or reduce.For example, be respectively among the embodiment of colour wheel 307 of three parts of red, green and blue having color, when light beam 341 when being green or blue (being respectively green or red, green or blue), light beam 340 is red (being respectively blue, redness).
In favourable distortion of the present invention, colour wheel 307 comprises six parts of each color, and these colors are redness, green, blueness, cyan, magenta and yellow.According to a specific embodiment, allow the minimizing of color separated or the realization of anti-piracy system, in any moment, light beam 326 and 327 is completed a business transaction colour wheel in the part of complementary color.Red (being respectively blue, green) and cyan (being respectively yellow, magenta) complementation.Anti-piracy system is described in the open WO 05/027529 of list of references patented claim, and the title of this application is " Methods of processing and displaying images and display deviceusing the methods ".In order to oppose during the demonstration of image by taking they and duplicating image, for example utilize camera at the cinema, use is based on the method for displaying image of at least one source images, wherein a plurality of images show continuously and wherein at least one pixel place, the color of display image is different from the color in the source images, and the color result of display image is the color in the source images.Thereby because the present invention allows the light beam stack of a plurality of different colours, so it has increased the dirigibility of the number of realization anti-piracy system and possibility parameter (be specially color combination and show speed).
According to another specific embodiment that also allows color separated to reduce, colour wheel 307 comprises at least four parts of each color, and these colors are red, green, blue and yellow.In the present embodiment, in each moment, light beam 326 and 327 is completed a business transaction colour wheel in the part that has about the color of opposition aspect people's perception and the vision system.Red (being respectively blue) and green (being respectively yellow) opposition.
According to alternative embodiment of the present invention, the beam splitter of one, two or three grating beam splitters 321,308 and 318 other types of usefulness substitutes, polarization beam splitting plate or PBS (polarization beam apparatus) cube (substitute the polarization p of horizontal direction and the polarization s of alternative vertical direction, these polarizations all are linear) for example.
The element of imaging system 20 illustrates with decomposed form.In order to increase the tight ness rating of system, catoptron 324 can more approach beam splitter 321, so that element 302,304 to 306 and 308 more approaches element 312,314 to 316 and 318, but does not intersect with it.Equally, imager 319 can be tangential to beam splitter 318 (maybe can be fixed to the upper, if they are dichroic PBS beam splitters of cube shaped).
Fig. 4 describes imager 400 with transmission LCD type and 402 imaging system 4 in detail.
System 4 substitutes about the system 20 in the projector 2 of Fig. 2 explanation.It comprises common element, and it has identical Reference numeral and is not described further, and particularly the source 300, lens 320,322,325,304 to 306 and 314 to 316, beam splitter 321, catoptron 324, colour wheel 307 and conduit 302 and 312.
By lens 304 to 306 collimation and in the face of Fig. 4 along the light beam 326 illumination LCD imagers 400 of first direction (perpendicular to the direction of propagation of light beam) p polarization (being linear polarization), it produces s polarization imaging light beam 440 (promptly having along the linear polarization perpendicular to the direction on Fig. 4 plane).
Light beam 440 is by polarization beam apparatus 401 reflections of dichroic PBS type, as shown in the figure.According to alternative embodiment of the present invention, the beam splitter of beam splitter 401 other types of usefulness substitutes, for example polarization beam splitting plate or grating polarizer.
By the light beam 327 illumination LCD imagers 402 of lens 314 to 316 collimations, it produces p polarization imaging light beam 441.
Light beam 441 is by tilt 45 ° catoptron 403 reflections and by polarization beam apparatus 401 of the axle with light beam 441.
Two light beams 440 and 441 make up then to form single imaging beam 44.
Preferably, beam splitter 401 is identical with the separating distance of each imager 400 and 402.
Certainly, the invention is not restricted to the foregoing description.
Particularly, the present invention is applicable to the imager of other type, particularly DMD type imager.As shown, in this case, in the embodiment shown in fig. 3, beam splitter 318 can substitute with a TIR type beam splitter, and imager 319 can substitute with a DMD imager; After lens 306, element 308 and 309 the usefulness vertically catoptron of folded light beam substitute, so that illumination TIR type second beam splitter relevant with the 2nd DMD imager; Thereby each imaging beam that produces is by the TIR beam splitter, and the light beam of two different polarization reconfigures in polarization beam apparatus then so that form single imaging beam.
In addition, rectangular conduit can substitute with the conduit with non-rectangular cross-section, or more generally with any type of converted light source and/or make its uniform device, free form lens (as describing in patented claim WO2006/058885, the title of this application is " Optical system and correspondingoptical element ") for example.These conversions and/or uniform device are used for the round section of illuminating bundle is converted to the square-section and makes the light beam space even.
In addition, be used to focus on or the layout of the optical element of collimated light beam, number and shape are not limited to above-mentioned example.In fact, these elements can according to particularly space requirement, a plurality of parameters that the size of optical quality and light beam is relevant reduce or increase.
The angle of inclination of catoptron and beam splitter not necessarily is at 45 or 90 ° with incident beam.According to the present invention, they can take other value, and it might apart or combination lighting on the contrary or imaging beam.
Advantageously, system according to the present invention uses single colour wheel, helps its realization thus.According to alternative embodiment of the present invention, two synchronizing wheels can realize that each of different polarization source beam is by one of wheel.
According to the present invention, be applicable to that the light source of any kind of projection can use, particularly have the light source of elliptical reflector or based on the light source of LED (light emitting diode).
The present invention also is applicable to the application of tripleplane's type.Clearly, utilize first imager of the image relevant with a polarization and eye, second imager with the image relevant with the another eyes with second polarization, the glasses of the different polarization of wherein right lens filter and left lens filter allow 3D vision (certainly, supposing that imager shows the image that is suitable for tripleplane) then.
The present invention not only relates to illumination/imaging system, and relates to projector, particularly comprises the rear projector or the front projector of this system.
Claims (10)
1. the optical system (3,4) of a projector (2) comprises that at least one produces the light source (300) of source lighting light beam; Be characterised in that described system further comprises:
-at least one first polarization beam apparatus (321) is used for the source lighting beam separation for along first illuminating bundle (326) of first direction linear polarization with perpendicular to second illuminating bundle (327) of first direction polarization;
-at least one colour wheel (307), in two different zones, intersect described first and second polarized illumination beams and produce along first column of colour of described first direction linear polarization and vertical polarization second column of colour;
-the first imager (309,400) is by along the illumination of first column of colour of described first direction linear polarization and produce first imaging beam (340,440); With
-the second imager (319,402) is by the illumination of second column of colour of vertical polarization and produce second imaging beam (341,441).
2. system according to claim 1 is characterized in that, it comprises at least one second polarization beam apparatus (308,341), and it is suitable for first imaging beam and second imaging beam are made up so that form the 3rd imaging beam (34,44).
3. according to the described system of arbitrary claim in claim 1 and 2, it is characterized in that described two separate areas are at the color part correlation of each moment and different colours.
4. system according to claim 3 is characterized in that, described two separate areas are at the color part correlation of each moment and complementary color.
5. system according to claim 3, it is characterized in that, under the situation of one of described two zones and the color part correlation of green, another zone and red color part correlation, and under the situation of one of described two zones and yellow color part correlation, another zone and blue color part correlation.
6. according to the described system of arbitrary claim in claim 1 and 2, it is characterized in that described first and second imagers (309,319) are the LCOS types.
7. according to the described system of arbitrary claim in claim 1 and 2, it is characterized in that described first and second imagers (400,412) are the transmission LCD types.
8. according to the described system of arbitrary claim in claim 1 and 2, it is characterized in that described first polarization beam apparatus (321) is the grating polarization type.
9. according to the described system of arbitrary claim in claim 1 and 2, it is characterized in that described first polarization beam apparatus is the dichroic type.
10. one kind comprises the projector (2) according to the described optical system of arbitrary claim in claim 1 and 2 and at least one projection objective (21).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0652724A FR2903199A1 (en) | 2006-06-30 | 2006-06-30 | OPTICAL SYSTEM FOR PROJECTOR AND PROJECTOR CORRESPONDING |
| FR0652724 | 2006-06-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101097296A true CN101097296A (en) | 2008-01-02 |
| CN101097296B CN101097296B (en) | 2011-12-14 |
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ID=37865661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101273788A Expired - Fee Related CN101097296B (en) | 2006-06-30 | 2007-07-02 | Optical system for a projector, and corresponding projector |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7862182B2 (en) |
| EP (1) | EP1874062A1 (en) |
| JP (1) | JP5350610B2 (en) |
| KR (1) | KR101386961B1 (en) |
| CN (1) | CN101097296B (en) |
| FR (1) | FR2903199A1 (en) |
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| CN102197644A (en) * | 2008-10-27 | 2011-09-21 | 精工爱普生株式会社 | Image projection system for reducing spectral interference |
| CN102566231A (en) * | 2010-11-26 | 2012-07-11 | 三洋电机株式会社 | Illumination device and video projector |
| CN102621697A (en) * | 2012-03-09 | 2012-08-01 | 中国科学院长春光学精密机械与物理研究所 | Wide-waveband infrared projection system based on off-axis reflection structure |
| CN102692799A (en) * | 2011-03-23 | 2012-09-26 | 台达电子工业股份有限公司 | Illumination system |
| CN103472620A (en) * | 2013-09-13 | 2013-12-25 | 合肥京东方光电科技有限公司 | Double-screen display device |
| CN104204942A (en) * | 2012-03-14 | 2014-12-10 | 夏普株式会社 | Projector |
| CN104977700A (en) * | 2014-04-10 | 2015-10-14 | 徐熙平 | Optical system for DMD camera |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008076103A1 (en) * | 2006-12-18 | 2008-06-26 | Thomson Licensing | 2d/3d projector with rotating translucent cylinder for alternating light polarisation |
| WO2008076113A1 (en) * | 2006-12-19 | 2008-06-26 | Thomson Licensing | Wide color gamut high resolution dmd projection system |
| WO2008076114A1 (en) * | 2006-12-19 | 2008-06-26 | Thomson Licensing | High resolution dmd projection system |
| CN101675383B (en) * | 2007-04-25 | 2011-06-22 | 汤姆森特许公司 | High resolution 3d projection system |
| JP5512516B2 (en) * | 2007-06-25 | 2014-06-04 | トムソン ライセンシング | Video recording prevention system |
| TWI435117B (en) * | 2010-09-07 | 2014-04-21 | Delta Electronics Inc | Polarization conversion system and stereoscopic projection system employing same |
| TWI489855B (en) * | 2012-05-23 | 2015-06-21 | Delta Electronics Inc | Light source system for stereoscopic projection |
| CN103713451B (en) | 2012-09-28 | 2016-06-22 | 扬明光学股份有限公司 | Multiplicity of projection system and use the display system of this system |
| US9146452B2 (en) | 2013-03-12 | 2015-09-29 | Christie Digital Systems Usa, Inc. | Multi-color illumination apparatus |
| DE102014224934A1 (en) * | 2014-12-04 | 2016-06-09 | Osram Gmbh | Light module for a projection or lighting arrangement |
| US11950026B2 (en) * | 2017-04-14 | 2024-04-02 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Methods and apparatus employing angular and spatial modulation of light |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02153336A (en) * | 1988-12-05 | 1990-06-13 | Sharp Corp | Projection type liquid crystal display device |
| JP3327153B2 (en) * | 1995-12-18 | 2002-09-24 | セイコーエプソン株式会社 | Projection display device |
| US6147720A (en) * | 1995-12-27 | 2000-11-14 | Philips Electronics North America Corporation | Two lamp, single light valve projection system |
| US6247816B1 (en) * | 1997-08-07 | 2001-06-19 | International Business Machines Corporation | Optical system for projection displays using spatial light modulators |
| US5993007A (en) * | 1998-04-21 | 1999-11-30 | Samsung Electronics Co., Ltd. | Reflection type projector |
| US6666556B2 (en) * | 1999-07-28 | 2003-12-23 | Moxtek, Inc | Image projection system with a polarizing beam splitter |
| US6280034B1 (en) * | 1999-07-30 | 2001-08-28 | Philips Electronics North America Corporation | Efficient two-panel projection system employing complementary illumination |
| CN1168288C (en) * | 1999-11-06 | 2004-09-22 | 三星电子株式会社 | Device and method for correcting false contouring in image display system |
| DE60018880T2 (en) * | 1999-11-06 | 2006-12-07 | Samsung Electronics Co., Ltd., Suwon | Arrangement for projection reproduction with two liquid crystal display panels |
| IL133051A0 (en) * | 1999-11-19 | 2001-03-19 | Unic View Ltd | Sequential imaging systems |
| JP2002207192A (en) * | 2001-01-04 | 2002-07-26 | Hitachi Ltd | Video display unit and driving circuit |
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| JP2007248794A (en) * | 2006-03-16 | 2007-09-27 | Hitachi Ltd | Projection type video display device |
-
2006
- 2006-06-30 FR FR0652724A patent/FR2903199A1/en active Pending
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2007
- 2007-06-08 KR KR1020070056180A patent/KR101386961B1/en not_active IP Right Cessation
- 2007-06-25 US US11/821,944 patent/US7862182B2/en not_active Expired - Fee Related
- 2007-06-27 EP EP07111183A patent/EP1874062A1/en not_active Withdrawn
- 2007-06-27 JP JP2007169112A patent/JP5350610B2/en not_active Expired - Fee Related
- 2007-07-02 CN CN2007101273788A patent/CN101097296B/en not_active Expired - Fee Related
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| CN102197644A (en) * | 2008-10-27 | 2011-09-21 | 精工爱普生株式会社 | Image projection system for reducing spectral interference |
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| CN104204942A (en) * | 2012-03-14 | 2014-12-10 | 夏普株式会社 | Projector |
| CN103472620A (en) * | 2013-09-13 | 2013-12-25 | 合肥京东方光电科技有限公司 | Double-screen display device |
| WO2015035757A1 (en) * | 2013-09-13 | 2015-03-19 | 合肥京东方光电科技有限公司 | Double-screen display apparatus and double-screen display method |
| CN103472620B (en) * | 2013-09-13 | 2016-03-16 | 合肥京东方光电科技有限公司 | A kind of dual-screen display device |
| US9658387B2 (en) | 2013-09-13 | 2017-05-23 | Boe Technology Group Co., Ltd. | Double-screen display device and double-screen displaying method |
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| CN112362160A (en) * | 2015-01-23 | 2021-02-12 | 台湾超微光学股份有限公司 | Spectrometer and light input part thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5350610B2 (en) | 2013-11-27 |
| US7862182B2 (en) | 2011-01-04 |
| FR2903199A1 (en) | 2008-01-04 |
| EP1874062A1 (en) | 2008-01-02 |
| US20080094578A1 (en) | 2008-04-24 |
| KR101386961B1 (en) | 2014-04-25 |
| CN101097296B (en) | 2011-12-14 |
| JP2008015517A (en) | 2008-01-24 |
| KR20080003227A (en) | 2008-01-07 |
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